
17th, the whole world looking at outcome of Greek election.   Expecting for the worst, mkt dive mostly n occasionally rally on slightest good news (the mkt so eager to rebound).   therefore all expectation is already factored into the mkt.   if there is any less sever situation on/after 17th than the mkt will rally madly.   but please dont think that this rally will be long term bull. it is just a relief to bring mkt back.
i expect, if this rally, does come it will be like collapsing sinusoidal wave with e^x envelope.....typical of a overshoot sinewave+correction then dies off.
in simple: the 1st wave will rally high then unsustain, profit taking n dive back, 2nd wave push up again but lower then 1st wave n dive back again.
so my advice is to let go when the peak price stay the same for let say few hours with buying/selling abt equal volume.   when price dive we will short to make it dive faster. 
this is just a scenario, but the fast rally will come if  any less sever situation  occurs that is for sure.